Refrigerator



UNITED STATES PATENT Ormond.

VILLIAM A. PRESTON, OF FORT BRANCH, INDIANA.

REFRIGERATOR.

SPECIFICATION forming part o Letters Patent No. 393,659, dated November27, 1888.

Application filed April T, 188B.

To aZZ whom it may concern.-

Be it known that I, WILLIAM A. Pnns'roN, a citizen of the United States,residing at Fort Branch, in the county of Gibson and State of Indiana,have invented certain new and useful Improvements in Refrigerators, ofwhich the following is a specification, reference being had therein tothe accompanying drawings.

My invention has relation to certain new and useful improvements uponrefrigerators; and it has for its object to provide means whereby acontinuous circulation of fresh air throughout the provision-chamber isobtained, the advantage in thus thoroughly Ventilating theprovision-chamber with fresh air being that the perishable articlesplaced therein will be kept in a perfectly fresh and prime condition fora greater length of tinie-a great desideratnm with refrigerators.

The invention consists incertain novel features of construction, whichwill be fully hereinafter described, and particularly pointed out in theclaims appended.

In the annexed drawings, Figure l represents a vertical sectional Viewof my improved refrigerator, and Fig. 2 a rear view thereof, a portionof the lower part of the refrigerator being broken away.

In the drawings, the letter A designates the vertical walls oftherefrigerator, B the bottoni, and C the cover or lid, all of these partsbeing made double and filled with any of the well-known non-conductorsof heat, such as charcoal.

D designates a door leading into the provision-chamber, and E ashelf inthe provisionchamber forsupporting the articles to be preserved. Overthe provision-chamber is located the ice chamber or box F, which issupported in its position by means of suitable cleats, a, secured uponopposite walls of the refrigerator. This ice chamber is located entirelywithin the refrigerator, a narrow space, G, being left between it andthe lid C; and it consists of a vertical double wall, I-I, a doublecover, I, and a double bottoni, J, all of which are filled with somenon-conducting material, the remaining side K (that opposite the doublewall H) being left open, as clearly shown in the drawings. Thisice-chamber is located in such a manner as to form two vertical chambersor passages,

Serial No. 269,978. (o model.)

L M, between it and the walls of the refrigerator,.the formercommunicating between the provision-chamber below and the air-passage Gabove the ice-chamber. The. passage M at its upper end is completelybridged or covered over by a horizontal double wall, N, which issupported by the adjacent walls of the refrigerator. Through one of theside walls of the refrigerator, immediately above the divisionwall N, isformeda Ventilating-opening, O, the size of which is regulated by meanslof a slide, P, of the usual construction. A screen,

Q, stretched across this opening O, serves to keep out insects. Rdesignates a drip pipe, of the usual construction, leading from theicechamber to the outside of the refrigerator.

The letters R R designate two fresh-air-supplying pipes, which extendfrom one side of the refrigerator in under and in close proximity to theice-chamber, terminating at their inner ends in downwardlvdirectedcurved mouths, these curved ends emptying the fresh air into therefrigerator near the lower end of passage M. Adapted to close the inletends of these air -supplying pipes are valves or slides S, by means ofwhich the supply of fresh air to the refrigerator can be regulated.

As the cold air from the icechamber drops down around thedownwardlydirected openings of the pipes R, a continuous and adequatesupply of fresh air is gently drawn in by suction, the downwardly-curvedends of the pipes serving to bring this result about. The icechamber, itis obvious by this construction, may be readily removed for the purposeof cleaning or repairing. When ice is placed in the ice-chamber, thecirculation of cool fresh air produced by the same is as follows: Thecold air in this icechamber, having no other outlet, passes out throughthe open side K into the passage or chamber M, and from thence down intothe provision-chamber below, drawing fresh air in through the pipes R',and forcing the warm and foul air in the provision-chamber up throughthe. passage L upon the other side of t-he ice-chamber, through thespace G, and out at the ventilating-opening O, as clearly shown bythearrows on the drawings.

The object in making the bottoni J, the vertical wall H, the cover I,and the horizontal division-wall N double and non-eondueting is toprevent the warln foul air arising from the provision-chamber from beingunduly cooled on its passage out of the refrigerator. It is evident thatwere these walls II I J N made of one thickness of material they wouldquickly become cold, and thus retard the free outward passage of thewarm air by cooling the same as it impinges against the eold walls onits way out. By this arrangement of the ice-box and the double partitionN, I obtain a continuous and thorough ventilation of theprovisionchamber, thus enabling me to preserve perishable articles in asweet fresh eondition for a greater length of time than in the ordinaryrefrigerator.

Having thns fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The Combination, with the refrigeratorcasing, consisting of thedouble non-conducting vertical walls A, one of the said Vertical wallsbeing provided with a Ventilating-opening, O, the double non-conductingbottoni and lid, of the ice-chamber consisting of double non conductingwalls, one side, K, of this. chamber being left open. the said icechamber being located entirely within the refrigerator, so as to leaveside spaces, L and M, and the narrow air-passage G above it,fresh-air-supplying pipes, and the horizontal double-wall partition N,arranged over the upper end of the passage M and immediately below theopening O in the refrigeratorwall, as and for the purposes herein fullyset forth.

2. The combination of the refrigerator-easing Constructed of nonconducting Walls and provided with a val ved exit, O, in one of itsvertical walls near the top, an ice-chamber setting wholly within therefrigerator and eonstrneted of double non-conducting Walls, one side,K, of this ice-Chamber being left open, the iceehamber forming ahorizontal passage, G, between it and the cover of the refrigerator andvertical passages L and M, a bridgewall supported by the sides of therefrigerator and Completely covering over the ripper end of the saidpassage M, the drip-pipes and the freshair-supplying pipes emptying intothe refrigerator near the lower end of the passage M, substantially asdescribed.

In testimony whereof Iafix my signature in presence of two witnesses.

`WI LLI AM A. PRESTON.

XVitnesses:

HIRAM L. YEAGER. J oHN J oNns.

